📉 Slashed £3k Allowance (2026/27)
Capital Gains Tax Calculator
Millions of crypto and stock investors will owe tax this year due to the slashed £3,000 allowance. Find out exactly what you owe HMRC in seconds.
Your Details
£
Used to determine your tax bracket.
£
Do not include the original purchase price.
Your 2026/27 Tax Bill
Tax-Free Allowance
2026/27 limit
£3,000
Taxable Gain
Profit minus allowance
£0
Total CGT Due
What you owe HMRC
£0
Net Profit after Tax:
£0
The Slashed Allowance Trap
Just a few years ago, you could make £12,300 in profit from selling stocks, crypto, or a second home without paying a penny in tax. Today, that allowance has been slashed to just £3,000.
This means casual investors who occasionally trade Bitcoin or sell company shares are now accidentally breaking the law by failing to report their gains. If you make over £3,000 in profit across all your sales in a single tax year, you must file a Self Assessment tax return.
Capital Gains Tax FAQs
What is the Capital Gains Tax allowance for 2026/27?
The tax-free allowance (Annual Exempt Amount) for 2026/27 is strictly £3,000 for individuals. This is a massive drop from the £12,300 allowance available just a few years ago, meaning far more casual investors now owe tax.
Do I pay tax on crypto in the UK?
Yes. HMRC treats cryptocurrency (like Bitcoin or Ethereum) exactly like shares. If you sell or trade crypto and your total profit for the year exceeds the £3,000 allowance, you must pay Capital Gains Tax.
What are the Capital Gains Tax rates?
For 2026/27, if you are a basic rate taxpayer, you pay 10% on crypto/shares and 18% on residential property. If you are a higher rate taxpayer, you pay 20% on crypto/shares and 24% on residential property.
How long do I have to pay CGT on property?
If you sell a UK residential property (that is not your main home) and make a taxable gain, you must report and pay the tax to HMRC within 60 days of completion.